Coin-controlled telephone system.



PATENTED APR. 10, 1906 E. A. REYNOLDS. 00m CONTROLLED TELEPHONE SYSTEM.

APPLICATION FILED AUG.19, 190-1.

4 SHEETSSHEET 1.

{L Q Homuu PATENTED APR. 10, 1906.

E. A. REYNOLDS. COIN CONTROLLED TELEPHONE SYSTEM.

APPLIOATION PILED AUG. 19, 1904.

4 SHEETS-SHEET z.

PATENTED APR. 10, 1906.

E. A. REYNOLDS. COIN CONTROLLED TELEPHONE SYSTEM.

APPLICATION PIL'BD AUG. 19, 1904.

4 SHBETS--SHEET 3.

PATENTED APR. 10, 1906.

APPLIUA'I'IOI FILED we. 19, 1904.

4 SEHBTSSHBET 4 ATTORNEYS UNITED STA-gas PATENT OFFICE.

EGBERT A. REYNOLDS, OF NEW YORK. N. Y., ASSIGNOR TO IRON TELE- PHONE COMPANY, OF NEW YORK, N. Y., A CORPORATION OF SOUTH DAKOTA.

COIN-CONTROLLED TELEPHONE SYSTEM.

Patented April 10. 1906.

Application filed .Lugus. 19. 1904. Serial No. 221,361.

To all/whom, it may concern:

Be it known that I, EeBnRT A. REYNOLDS, a citizen of the United States of America, and aresident 'of the city, county, and State of New York, have invented certain new and useful Improvements in Coin-Controlled Telber called for in certain im roved meanswhereby the subscriber calls may use his instrument without the necessity ofdropping in a coin; in certain improved means for taking care of the coin and registering same;

a in an im roved privacy and busy-signal device, an in certain improved details of construction and combination of parts, as willhereinafter be more fully pointed out.

' My invention also consists in certain novel electrical connections andarrangement of switches, contacts, &c., comprising a novel telephone system, as will hereinafter ap ear.

In coin-controlled telephones it has een usual heretofore for a subscriber to first call central, informin the operator there of the number desired, w ereupon the central operator has endeavored to obtain the number and,

responsi if successful, notified the caller and instructed him to drop a coin into themachine. Then when the coin was placed in the machine a signal was operated at the central station informing the central operator of the fact'that the subscriber had paid his toll,--and the-central operator then connected the caller with the party) called for.

is for grave dela s and has had the effect of either greatly re ucin the speed at which the callscan be handle atlcentral or has required a greater number of central opcraters. for a given number of lines for it will "be readily understood that the switch-- Such a system has been board is held from the time the subscriber first calls central to the time heis placed in talking connection with the arty called for. This has brought coin-contro led instruments into disrepute with telephone companies. It is one of the main objects of my present invention to overcome this difficulty, and' to this end I have so designed and constructed my improved system and apparatus that a coin-controlled instrument operating in accordance therewith will'cause nomore delays at central than will an ordinary instrument. In my im roved instrument the toll must be paid be ore central is called, and therefore central does not assume any of the responsibility for the pa ment of the toll, nor have to wait after the ca led number has been obtained until the caller pays-the toll before she can complete connection between the sub scriber calling and the 1party called for. A

call from a coincontro ed instrument may be treated by the central operator exactly as a call from ordinary instruments except that if the central operator fails to obtain the num ber called for provision is made whereby she mayreturn the amount of the toll to the subscriber.

So far as the instrument itself is concerned my object is to combine in onevinstument all of the desirable features in a arty-line coincontrolledfsystem particular y adapting the same for residential purposes. Other objects. are to simplify and improve the apparatus and reduce the cost of manufacture, to construct the various parts so that they are easy of. access for ad uStment and re airs, and to reduce to a minimum the num er of electrical contacts emplo ed.

I will now proceed to escribe a telephone apparatus and system embodying my invention and will then point out the novel features in claims.

In the drawings, Figure ,1 is a front view of a telephone set embodying my invention. Fig. 1 1s a die amin'atic sectional view of. the instrument ox or case: Fig. 2 is a detail view of certain arts showing particularly the ringing an talliing contacts, the busy-signal, an the privacy-device-circuit closer. Fig. 3 is a detail view, in side elevation, of the privacy-devicecircuit closer.

' arts. Fig. 5 is a top: view of the same. ig. 6 is a detail view, in front elevation and partially broken away in section, of the ower end of the coin-chute, the coin-slide, and certain correlated parts. Fig. 7 is a simi-- lar view with the parts in different position. Figs. 8 and 9 are respectively views in central vertical section of the parts shown in Figs. 6 and 7. Fig. 10 is a detail view showing a portion of the coin-slot, the talking contacts, and the gravity-wheels for controlling same during an incoming'message. Fig. 11 is 'a view in vertical transverse section through the said gravity-wheels. Fig. 12 is a" detail View of the ringer-coils, the

. gravity wheels, and the mechanism operated I by the ringer-coils for imparting movement to the said gravity-wheels. Fig. 13 is a detail view of the finger tripping device. Fig.

14 is a diagrammatic view of a simplified circuit, showing the electrical connections in asystem embodying my invention.

In the embodiment of my invention'here n illustrated I have shown all the various devices comprising a complete telephone set' in a single .m'etallic casing 1. The front part of the casin 1 comprises a door '2, suitably hinged to t e main portion of the casing and provided, if desired, with a lock, whereby it may be 'locked'in its closed position. A diaphragm 3 divides the casing into cuit and'the ringing-circuit.

, normal position.

I the finger 7, thecoin will be immediate y betwo chambers, the rear chamber of which may be employed for receiving the condenser, preferably employed in connection with the ringer of the instrument, and the front chamber for receiving the mechanism now to be described.

The coin-chute 5 preferably extends from the upper right-hand corner of the box or ca'sing toward the lower left-hand corner, the coin being received; within a slot 4, communicating with the said chute, as shown. Near the upper end of the chute 5 I provide a number of fingers 6, arranged by gravity to swing into the path of movement of the coin, but

designed to be thrown aside by the coin in its descending movement. After the coin has passed thefingers the willagain swing in the path of movement of the-coln and will prevent return-of the coin, so that a coin once having passed them cannot be drawn back again. A coin drop ed into the chute 5 will pass down same unti it is stopped by a finger 7, arranged'in the path thereof, whichfinger is S S pivoted and preferably held by gravity in'its l/Vhen in osition a ainst low an insulatingblock 8', carried by a contact-sprin 9. The contact-spring 9 is one of two sets 0 sfi'ings constituting circuit making and brea Contact-springs 9 and '10 belong to the talking-circuit and are normallyjopenor out of electrical engagement'w th each other, while contact-springs ng devices for the talking-cir- 11 and 12 belong to the ringing-circuit and are normally closed or in electrical contact the contacting springs 9 10 and is so arranged that when the receiver is on the hook it will tend to press the spring 11 against the spring 12, while when the receiver is off the hook and the hook moves up the said pinwill move down between. the springIO and the spring 11, which will then separate by its Y own resilience from the spring 12 and will tend to press the spring 10.1nto electrical contact with .the spring 9. The usual bowspring 18 operates to move the telephonehook'upw-ard when the receiver is removed therefrom. The force of the sprin 10 down ward, however, tends also to force t e spring 9 downward because of the presence of a block 19 of insulating material, which is'arranged between the contact-s rings near their point of sup ort, and'if bot springs are thus'permitte to move down when the telephonehook is released no electrical contact will be made between the springs 9 and 10. If, however, the lower spring 9 is supported and prevented from moving downwardly, then under these conditions the upper spring 10 will be'forced into electrical contact therewith and circuit completed. A coin'of the proper dimension in the chute and stopped 3 y the finger 7 will be immediately beneath the insulating-block 8, carried by the strip 9, and'will be of such a diameter as to prevent the said block 8, and hence thespring 9, from moving downward but a short distance and will support the spring so that the operation of the telephonehoo'k will bring the contactspring 10'into electrical engagement with the said contact-spring 9. p A linkQO is pivotally connected at 1ts u per end tothea'rm 16 of the telephone-hoo 2 and at itslower end is provided with a shoulder or abutment 21 adapt ed to engage a portion carried by'the finger '7, so as-to trip same at each upward or return movement of the said arm. When, there fore the telephone-receiver is returned to the hoo downthe chute to the lower on thereof.- At the lower end thecoin is received by a slide 22, having lips 23,which will supportthe com and "prevent it from dropping.down;

Y and the hook lowered'into laceonpe i more, the finger 7 will be trippe ,thereby releasing the coin and allowin vit to travel" This slide is pivotally connected at itsup er endto the telephone-hook, as at 24, so t at the slide will move up and down as the hook moves up and down. The. slide has laterally-projecting fingers 25, which in the upward movement of the slide pass in front of flanges 26, and the slide as a whole is held forward thereby. The coin, however, is in front of the said flanges, and; as the slide reaches the top of the flanges it springs back and is withdrawn from engagement with the coin, so that the coin will be instantly released and allowed to drop down into the coin-safe 27, located immediately beneath the lower left-hand end of the chute. The slide 22 is also provided with a laterally-projecting toe 28, arranged in the uppermost po-' sition of the slide to close the end of the chute 5,-so as to revent a coin passin directly from the c ute to discharge wit out being first received on the slide. The slide has a slot 29therein, which slot is almost, but

not quite, covered b the coin whenfirst received upon the sli e. (See Fig. 7.) This slot receives the end of an arm 30, constituting the operating member of a coin-register 31. If a coin is-in position, the said arm 30 will be confined between the upper shoulder of the slot 29 and the periphery of the said coin, as is shown in Figs. 7 and 9, and a reciproeating movement of the slide caused by an up-and-down movement of the telephonehook will operate the counter in a manner 'well known.

If, howeventhere is no coin in the slide, the slide may reciprocate freely without imparting any movement to the arm 30, the said arm resting in the slot 29 at such time. I will not explain in detail the mechanism of the counter, assuch forms no part of my present invention. Suflice it to say that each reciprocation of the operating-arm 30 gives one impulse to the said counter, thereby. registering successive units.

So far as the device has been at present described it will be seen thatunder normal conditions the ringin -circuit is closed. i Removal of the telephone om the hook will open the rmging-circuit, andtend to close the talkingcircuit. If, however, there is-no coin in the chute the talking-circuit will not beclosed;-

but ii a coin has been previously dropped into the chute before the taking of the -receiver off the hook the talking-circuit will-be closed thereby and the teleplhone may be used in the ordinary way, an ing up" of the receiver will tri the finger 7, a owing the coin to roll down t e chute onto the slide 22, where it will rest until the next successive I movement of the telephone-hooki The next time the telephone is used and the'receiver removedfrom the hook the slide will be lifted and" the coin discharged, as above explained, while the operating-arm of the counter will also be lifted. The counter may opspring m'em movement oi the arm 30, the replacing oi" the receiver on the hook lowering the arm SO'to its normal position and bringin the slide back to the next count. By the horegoing it will also be seen that a coin of the required diameter is necessary in order to operate the register. A coin of a smaller diameter would not lift the lever or arm 30 su'llieiently.

!1-ivacw device and bTZSj/wtlflllltl.--lAOOSLhGll at the upper left-hand corner of the box or casing is a switch comprising a stationary contact member 32 and a movable contact member 33. The movable contact member is arranged with a portion 34. thereof in the path of a pin 35, carried by the telephone hook 14. At the first upward movement of the telephone-hook the pin 35 will engage the ortion 34 of the spring contact-piece 33 to ibrc'e it against the stationary contact 32', so as to form electrical connection between the two. Further upwardmovement of the. tele phone-hook will cause the in 35 to slide alon the strip '33-u'ntil final y it passes beyon same, when the strip will fly back by its own resiliency. On the return movement the pin 35 will assrlown'the inside of the said her and will prevent contact from being made between the two CODtflGt-PlGCGS until the next upward movement. The contact-pieces 32 and 33 are mounted upon an insulating-block 36, by which they are insulated from each other and from the remainder of the device. The contact-springs 32 33 are arranged in the circuit with coils 37 of an electromagnet of low resistance, which is connected in between the returning-leg of the I same will be momentarily s ort-circuited when the telephone-hook is released, through the coils 37, to energize same and attract the armature 38 thereof. Connected to the armature 38is a wire or rod 39, carried in a thin plate of insulating material 40. The insulating-plate 40 is arranged in position at the rear of the contact-springs 9 and 10 and in a plane intermediate thereof. When the armature is attracted, this piece of insulating material will be inserted between the two contact-springs 9 and 10, so that even though the spring be su pported by a coin electrical contact will not e made. 3 The armature 38 also carries a pin or projection 41, which engages a detent 42, carried by lthetelephone' 00k 14. The movement of thejarmature 38 toward its coils throws the deteiit 42 to the left and in the path of movement of arlip 43 u on an indicator 44, ivoted loosel upon t e pivot 15. When t 's hap ens, t e raising of the telephone-hook ,wlll liftithe indicator 44, disclosing theword Busy through a slot 4.5 in the casing 1 to the person wishing to use the tele hone crate on the lifting or on the depressing I that the'line is occupied or busy,. Wl'll e the IIO This will indicate In the foregoing contingency the coin v down the slotto be recorded and received with- 7' latch 49 out of engagement with the gate,

insulating-piece will act as a privacy device to prevent him from listening to what is being said. Upon the return of the telephone-hook 14 to its normal position the indicatoi 44 will drop to its normal position by vgravity, and the detent 42 will also return by gravity to its normal rest position out of the path of the lip 43.- An abutment 46 forms a mit-stop for limiting the forward movement of the detent.

should be returned to the user, because no service has been rendered therefor, while it means werenot otherwlse provided the 00111 would upon hanging up of the receiver pass in the safe'12 7. In order that the coin may be returned when it has not been earned, the chute is provided with a swinging gate 47, pivoted at 48. This gate forms a part of the ottom of the chute, but may swing on its pivot 48 under certain conditions. Normally the said gate is locked in position by means of a latch 49,, which engages same. Thearmature 38, however, is provided with a finger 50, upon which rests arod 51, con: nected to the said latch 49. The end of the mu 51 -is=bent obliquely, a s at 52, forming a cam against which the finger 50 will operate 'When the armature 38 is attracted. At such time therod 51 will be lifted, swinging the which will then be free to swing upon its swing back to its normal position, being pivot. K If now the coin be resting on the gate, upon the opposite side of the pivot 48, the gate will swing around, and the coin will fall therefrom onto the return-chute 53 ;from" which it may be removed through the open ing 54 in the side of the casing. Immediately the coin is thus returned the gate 45 will slightly overbalanced uponthe left-hand side of its pivot, and will rengage the latch 49,

which is but momentarily tripped during the brief period that the 0011s 37 are energized.

By the foregoing it will be seen that should a person desiring to use the instrument drop in acoin while the line i'sbusy, busy-signal will inform him of the fact, a privacy device will prevent him from hearing what is being said upon the'line, and his coin will be re turned to him. Provision is also made for returning the coin should the operator be un able to procure the number desired, agrd for utton this pur ose I ,hav,e provided a push- 55, whic is, arranged in multiple with the contact-springs 32 and 33. ,Pressing the pushbutton 55 will close circuit through the coils 37 to ground, and a circuit-closing device will be provided at central to momentarily throw in a generator from ground through the return-leg of the main-line circuit, so as to energize the coils,-which will trip the gate 47 in the manner above described and'return the chute 4 against thefinger 7 So far as here described, it-will be seen that in order for the telephone to operate it is necessary that the coin be in, the chute beneath the contact-spring 9, so that contact may be made between the springs 9 and 10 when the receiver is removed. When, however, the telephone is to be used on a call from central v or from another party, it is not the custom in the rest position of said wheels register with each other and are immediately beneath the insulating-block 8 and are of such size as to fully receive the said insulating-block, 5'0

that they will not impede the downward movement of thespring 9. If all or any of the wheels be moved from their normal or rest positions at the time the springs 9 and 10 are depressed, the block 8 will be received on the peripheries thereof and will be held against descent, just as ifa coin were in the In order to operate the wheels, I have provideda pawl 59,

which is adapted to engage teeth on the periphery ofthe said wheels, said pawl carried by a rod 60, controlled in its movements by .an armature 61 arranged within the mag{ netic field of one or both of the ringer-coils 62.

When, now,;current is sent along the line through theringer-coils to operate a signal,,.- the armature 61 will be rapidlv vibrated to ro5 rapidly reciprocatethe pawl 59. V The effect ofthiswill beto swing the wheelsifrom side:

to side, as a5p'endulum is swung,-,and the wheels so set in ,motion willcontiniie to vibrate for some period of time saythirty seconds-after the ringer has ceas eglgt o operate, the wheels being so 'turned time as to present their peripheralv surfaces be- IIO neath theblock 8, A person answering the telephone, therefore, within, say, thirty sectonds of the completion of a signal will be able to use the telephone without dropping a coin in the'chutef In practice it w1l be custo mary to send a series of signalsnot less than thirty seconds apart until the telephone-hook is removed or until the central operator coneludes that there is no one to answer the call.

Immediately upon returnin the receiverto its place upon the hook, an i so relievingthe wheels of pressure, su as has been sufiicient toprevent the wheels from returnin by rav ityto their normalrest positions, t e w eels Wlll so return, and the nstrum more be in its normal condition. I

.The ringer herein shown comprises.

entwill once erases coils 62, just referred to, a rocking armature 63,pivoted at 64, a clapper 65, and. bells 66.

The coils 62 are polarized in the usual man application, filed coincidently herewith. The

rm'ger is designed as a part of a selective ringing system, the ringer of each individual instrument being tuned to res 0nd only to impulses of a redetermined equency. The Induction-e011 (shown at 69) is suitably connected electrically in the manner to be'presently described; I In Fig. 14 I have shown adiagrarn illustrating the electric circuits of the device in order that the 0 el a'tion of the device may be quite clear, an in these circuits I have, left out many of the switches, connections, and devices, such as the clearing-out dro s, &c., usually employed, in order to simp ify the same, and show only such parts as are necessary for a clear understandin of the invention. In the diagram I have s own two lines A'and B and will assume that a subscriber on hne B desires to talk with a t subscriber on line A. In line A, I'have shown two telephonesets, representing two subscribers A and A. The subscriber on line B will remove his receiver from the hook, closin the circuit across the ositive and negative lacs 70 71 thereof, an by energizing a coil 72 at the central office will operate the signal 73 to inform the operator that subscriber B is calling. The operator will insert the callingplug 74 in the jack 75, which will cut out the signal in the ordinary manner, and connect the cord-circuit with the line. 100 designates the enerator of a central-energy system of we -lrnown form, which will now be connected with line, and the central operator will now out in her instrument 76, which is bridged across the cord-circuit of the callingplug 74, to ask the subscriber B what number is wanted. Subscriber B statin that he wishes to talk to subscriber A, t e central o erator will insert the answerin -plug 77 in t a jack 78 of the line A and wi 1 then connectthe cord-circuit of the answering-plug with conductors 79 80 of a selective signaling set of enerators 81 82 83 84:. For the purpose oi making this connection I have shown a switch-lever 85, havin two electricallyconductive portions 86 an 87 insulated from each other and respectively connected to the two wires of the answering-plug cord-circuit. The conductors 79 and 80 terminate in contact-points 88 and 89, adapted to be placed in operative connection wit the contact or tions 86 and 87 of the switch-lever 85. S1milarly, contact-points 90 91 form terminals for tilt the sleeve of the answering-plug to the positive wire of the main line A, through the wire 95, condenser 96, (ordinarily employed,) contact-springs12 and 11, which, it will be remembered, are normally closed, ringer-coils 61 to ground 97, and back through generatorto ground 98 and'commonreturn 99 to generator 81. This will give subscriber A a signal that he is wanted and by vibrating the gravity-disks 56 will permit him to use his instrument without payment of a toll, Directly the subscriber 'A removes his telephone from the hook the central-office operator will throw the switch-lever 85 to connect the cord circuit of the answering plug 77 with the central-energy generator 100, thereby connecting B with A. The switch-lever 85 is shown in this position in the diagrammatic figure of the drawings. The enerator 92 may be employed where a selective system of ringing is not required-that is to say, where a subscriber has entire control of the line. If subscriber B had wished to speak to subscriber A instead of to subscriber A, the key a should have been pressed instead of the key a. The conductor 79 would then .be connected with generator 81 instead of the conductor 80, current passing thence through the tip of the answeringplug 77, thence to the negative wire of the circuit A to the wire 101, through the ringer 61 of subscribers instrurnent A to ground 97 thereof, and back to generator-81. The generators 81, 82, 83, and 84 are intended to have diiierent frequencies, such frequencies being represented, for instance, by 2,000, 4,000, 6,000, and 8,000, and is intended that the ring ers 61 of instruments A and A shall be tuned to respond to current undulations of 2,000 frequencies only-that isto'say, they shall not res 0nd to the currents of generators 82, 83, an phones may be arranged in the line A, two of the ringers thereof responding to generator 82', two others to generator83, and two others togenerator 84, the said pairs of ringers being connected, as the ringers of A and A to the positiveand negative legs of the main circuit A, respectively. A selective system giving an eight-party line isthus made possible.

To comprehend the privacy-device circuits, it will be assumed for the moment that subscriber A is using his instrument at the moment subscriber A lifts his receiver oil the hook. The line A will be energized and a 84. In this manner six other teleportion of the current thereof will be momentarily shunted through the contactsprings 32 and 33 of instrument A through the coils 37, which will be preferably of very low resistance, and through ground 102 to ground 103, connecting with the negative side of the central-energy generator 100. This will operate, as above stated, to insert the insulating piece 40 between the contactsprings 9 and 10 of instrument A to prevent the subscriber at A hearing what is being said on the line and will also operate the busy-signal. The closing of circuit through contact-strips 32 and 33 is only momentary, and hence As use of his instrument will not be interrupted. Similarly, of course, if A were using his set and A were to lift his telephone off the hook current would be momentarily short-circuited through the coils 37 of instrument A, as will be well understood.

I have provided each line (or the cord of each line) with a switch-key 104 at the central oflice, such switch arranged to temporarily connect the negative or return leg of a line with generator 105. This key may be used by a central operator when the subscriber is instructed to close circuit through his coin-button 55, circuit then being established from generator 105, through switch 104, return leg of the line A, through coinbutton 55, (in multiple with contact-springs 32 and,33,) through coils 37 to ground 102, back through ground 106, to generator 105. The momentary closing of this circuit, it will be remembered, operates to release the swinging gate 47, and so to return a coin should the operator be unable to give the subscriber the number required.

In this application I have claimed the busysignal and privacy device in its combination with a coin-controlled apparatus; but it will be understood that-such privacy device and busy-signal may be useful in connection with other than coin controlled apparatus, and hence I have made the same the subjectmatter of a separate application, filed coincidently herewith, and have claimed the same broadly therein.

It will be obvious that the foregoing is but one embodiment of my invention, and that the same is capable of many and varied modi fications within the spirit and scope of my invention, and, further, that certain parts may be em loyed in connection with other parts of di 'erent construction. Hence I do not desire to be limited onlyto the precise details of construction and combination of parts herein.

What I claim is- 1. In a coin controlled telephone'instrument, the combination with contact-points, a coin-holder and a receiver-hook, of means operated jointly by a coin in such holder and by movement of said receiver-hook, for bringing said contact-points together, said contact-points adapted to connect the tele hone instrument in talking-circuit with the ine.

2. In a coin-controlled telephone instrument', the combination with a coin-chute and means for temporarily arresting a coin therein, of circuit closing contacts arranged to connect the instrument in talking-circuit with the line, a receiver-hook, and means operated by the receiver-hook and controlled by the coin when so arrested in the chute for closin the said contacts.

3. Iii a coin-controlled telephone instrument, the combination with'a coin-chute and means for temporarily arresting a coin therein, of contact-springs arranged above the point at which the coin is arrested and normally out of electrical contact with each other, a receiver-hook, and means carried thereby operating to enga e the said contactsprings upon the upwar or release movement thereof, and by coaction with a coin in the chute, to cause the said contact-springs to engagev each other.

4. In a coin-controlled telephone instrument, the combination with a coin-chute and a finger for temporarily arresting a coin therein, of a contact-spring arranged above the coin-chute and provided with an insulatingblock arranged to engage the periphery of a coin retained in the chute, another contactspring arranged in proximity thereto, and a telephone-hook having a projecting stud 17 arranged to press the said contact-springs together upon release movement of the telephone-hook, provided the lower spring is supported by a coin in the chute, but adapted to move the sprin s without electrically connecting them shou d the lower spring be unsupported.

-5. In a coin-controlled telephone instrument, the combination with a coin-chute and a finger adapted to temporarily arrest a coin in the chute, of means connected to the receiver-hook and operated by the movement thereof in one direction for tripping the said finger to release the coin, said means yielding to avoid moving the finger when the receiverhook moves in the other direction.

0. In a' coin-controlled telephone instrument, the combination with a coin-chute and means for temporarily arresting a coin therein, of circuit-closing contacts arranged to connect the instrument in talking circuit with the line, a receiver-hook, means operated by the receiver-hook and controlled by the coin when so arrested in the chute for closin the said contacts, and means connecte with the telephone-hook forv tripping the said coin-arresting means.

7. In a coin-controlled telephone instru ment, the combination with a circuit-closer and a receiver-hook, of means arranged to be controlled by a coin for operating said circuit-closer upon release movement of said receiver-hook, and other means for controlling the operation of said circuit-closer upon a similar release movement of said receiverhook.

8. In a coin-controlled telephone instrument, the combination with a coin-chute and means for temporarily arresting a coin therein, of a circuit-closer, a receiver-hook, and means carried by said receiver-hook for'opcrating the said circuitcloser during release movement thereof when a coinis in. osition in the chute, and means arranged or temporary substitution for the coin for control ing the circuit-closing operation upon such release movement of the receiver-hook.

' 9.In a coin-controlled telephone instrument, the combination with a coin-chute, means for temporarily arresting a coin therein, and a contact spring arranged to be pressed upon the periphery ofa coinso ar-' rested in said chute, of a gravity device pivoted in proximity to the point in the chute in which the coin is held, said gravity device arranged normally out of the path of movement of the said spring, but adapted, when.

desired to be swung in the path thereof, to

support same in substitution for the coin.

10. In a coin-controlled telephone instrumerit; the combination with a coin-controlled circuit-closer, of a gravity device and means for operating same to control the circuitcloser in substitution for the coin-controller.

11. In a coin-controlled telephone instrument, the combination with a coin-controlled circuit-closer, of a gravity device, signaling means, and means operated by the signaling means for operating said gravity device ar ranged to control the circuit-closer in substitution for a coin.

12. In a telephone instrument, the combination with a coin-controlled circuit-closer for the talking-circuit thereof, ringer-coilsin Y I the ringing-circuit thereof, a gravity device arranged to control the circuit-closer independent of a coin, and means operated by the ringer-coilsfor operating the-gravity device. V .r I

13. In a coin-controlled telephone instru-,

and a circuit-closer-for closing circuit-in the line controlled by a coin received therein,'of

electromagnetic means for discharging the coin'from the receiver and returning same to 6e the'subscrib er, said means. including a cirou1t-dloser-mranged 1n series with another circuit-closerat central, betweeh the return 7 leg of the line and ground, wherebyclosing of circuit through both said circuit-closers is necessary to operate the saidcoiu-dischargtherein, of a pivote .ing means, and same will be operated regardless of whether the line-circuit is open or closed.

15. In a telephone system and apparatus, 7

cuit in the line, controlled by a coin received therein, of means under the joint control of the central operator and the subscriber for expelling and returning the coin from the coin-chute while talking-circuit is closed in the line. I

17. In a coin-controlled telephone instrument, the combination with a coin chute] and means for tem orarily arresting a coin gate forming a part'fof the said coin-chute, a locking'device fornormally holding said gate in position, said gate :arranged to be overbalanced by a coin when arrested in said coin-chu te, means fortripping said locking device to permit said com to overbalance the pivoted gate, whereby said coin may be expelled from the chute and returned.

18, In a coin-controlled telephone instru- 'ment;, the combination with a coin chute .and means for temporarily arresting a com therein, of a pivoted ate forming a art of the said coin-chute, a ocking device i dr normally holding said gate in position, said ate arranged to be overbalanced by a coin w en arrested in said coin-chute, means for tripping said locking device to ermit said com to overbalance the pivote gate, whereby said coin may be expelled from the chute and returned, said gate arranged to return to its normal position when the coin is discharged, by gravlty.

19. In a coin-controlledtelephone instrument, the combination with a coin-chute and coin-controlled mechanism for Elosin electrio circuit when a coin is inserted 1n the chute, of a privacy device and means fpr rea jecting the coin from the chute when the privacy device is operated.

20. In a coin-controlled telephone instru ment, the combination with a coin-chute and coin-controlled mechanism for closing electric contacts, of a privacy device arranged upon its operation to prevent closing of said e ectric contacts.

21. In a coin-controlled telephdpe-instrument, the combination with a coin-chute and com-controlled mechanism for clos ng elec- IOO tric contacts, of a privacy device arranged upon its operation to prevent closin; of said electric contacts and for rejecting and returning the coin employed for such control.

22. In a telephone system and apparatus, the combination with a normally open linecircuit, of coin controlled means for closing circuit in-the said line, and means forpreventing the closing of said circuit if a circuit has already been closed in the line.

23. In'a telephone system and apparatus, the combination with a normally open linecircuit, ofcoin-controlled means for closing c1rcu1t 1n the said -l1ne,- and means for pre-- venting the closing of said circuit if .circuit has already been closed in theline, and for locking the said gate in position, a privacy device includin an electromagne t anda'n armature there or, and means. operated by. the armature in its movementfor releasing the gate-locking means. I

. 26. In a coin-controlled telephone instrument, the combination with a coin controlled circuit-closer, of a privacy device including an electromagnet, a busy-signal controlled bysaid electromagnet, and means operated by'the electromagnet synchronously with the operationof the privacy device for rejecting and returning the coin.

27. In a telephone system and ap aratu's,

the combination with a coin-contro led circuit-closer, a privacy device, and means for rejecting a coin upon operation of the privacy device, of a hand-operated circuit-closer arranged in multiple with the coils of the priva-cy device.

28. In a telephone system and ap aratus, the combination with a coin-contro led circuit-closer, a privacy device, and means for rejecting a coin upon operation of the privacy device, of a hand-operated circuit-closer arranged in multiple with the coils of the privacy device, and means at the central station for completing circuit through the privacy-device coils and the hand-operated circuit-closer. 4

29. In a coin-controlled telephone instrument, the combination with a receiver-hook and a coin-chute, of a slide connected to the receiver-hook and adapted to receive a coin thereon from the chute, a coin-counter and means operated by the slide in its movement for operating the coin-counter.

30. In a coin-controlled telephone instrument, the combinationwith a receiver-hook, a coin-chute and a slide connected with said receiver-hook adapted to receive coinsfrom the said chute, of a coin-counter, means operated by said slide in its movement when a coin is therein for operating said counter and for rejecting the coin after it has been employed' for control or said counter.

31. In a coin-controlled telephone instrument, the combination with a coin-chute and a receiver-hook, of a reciprocating slide connected with said receiver-hook and arranged to take its movement therefrom, said slide arranged to receive coins from said coinchute, a coin-counter, operating means therefor in proximity to thesaid slide, said operating means en aged by a coin when contained in the slite and upon reciprocating 'movement thereof.- .32. Ina coin-controlled telephone instrument, the combination with acoin-chute and a pivoted receiver-hook, of a slide connected to said receiver-hook, said slide provided with a slot, a coin-counter, an operating-levertherefor, one end of which is received within the said slot in the slide, said slide having means for sup orting a coin thereon in a position to partiall y cover the said slot, whereby the ortion of the lever received therein is con ed between the eriphery of the coin and the end of the said sl ot, substantially as andfor the purpose specified.

33. In a coin-controlled telephone instrument, the combination with a coin-chute of a reciprocating slide adapted to receive coins therefrom, and means ,forcausin the said slide to pass-through a different pat o move- .ment when moving in one'direction to the path of movement it passes through when moving in the other direction, substantially as specified.

In witness whereof I have hereunto set my no hand this 15thday of August, 1904.

EGBERT A. REYNOLDS.

Witnesses:

FRANK B. VERMILYA, D. A. REYNOLDS. 

